[RFI] Solar Panel RFI - Noise begins
dxdx at optonline.net
Sat Aug 20 17:36:37 PDT 2011
On 8/20/2011 5:22 PM, Pete Smith wrote:
> It might be more useful if you showed us a panoramic display with a
> wider band-spread, to see if there is a characteristic repetition every x KHz, or something similar. 73, Pete N4ZR
The noise was repetitive, but I don't recall how far apart the signals
were. It disappeared a few hours ago so I'll have to wait till it pops
up again to make another video -- I'll post it ASAP.
I wonder if it's more likely for solar panels to cause RFI during the
day when they are being charged?
> On 8/20/2011 4:50 PM, Tony wrote:
>> As I mentioned yesterday, my neighbor installed solar panels on his roof
>> (thanks for all the replies). The installation was completed today and
>> it appears to be causing RFI.
>> I doubt this is a coincidence because beam heading to my neighbor, some
>> 400 feet away, was very quite prior to the solar panel install. I made a
>> short video (please see below) hoping that someone can confirm if this
>> is typical of solar panel noise.
>> RFI Video -- http://www.youtube.com/watch?v=S1s0wSTfDnM
>> The noise appears on 20 through 10 meters, but seems to be absent on 15
>> meters. I'm assuming that the system goes into "sleep mode" some time
>> after sundown so I'll check again this evening.
>> RFI mailing list
>> RFI at contesting.com
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